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Remove left parts of the signer implementation

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This commit is contained in:
ErickSkrauch 2024-06-11 04:43:43 +02:00
parent 716ec8bd37
commit dc3d3bb419
No known key found for this signature in database
GPG Key ID: 669339FCBB30EE0E
2 changed files with 0 additions and 140 deletions
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59
internal/security/signer.go
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@ -1,59 +0,0 @@
package security
import (
"crypto"
"crypto/rand"
"crypto/rsa"
"crypto/sha1"
"crypto/x509"
"encoding/pem"
"errors"
"io"
)
var randomReader = rand.Reader
var invalidKeyFormat = errors.New(`invalid key format: it should be"der" or "pem"`)
func NewSigner(key *rsa.PrivateKey) *Signer {
return &Signer{Key: key}
}
type Signer struct {
Key *rsa.PrivateKey
}
func (s *Signer) Sign(data io.Reader) ([]byte, error) {
messageHash := sha1.New()
_, err := io.Copy(messageHash, data)
if err != nil {
return nil, err
}
messageHashSum := messageHash.Sum(nil)
signature, err := rsa.SignPKCS1v15(randomReader, s.Key, crypto.SHA1, messageHashSum)
if err != nil {
return nil, err
}
return signature, nil
}
func (s *Signer) GetPublicKey(format string) ([]byte, error) {
if format != "der" && format != "pem" {
return nil, invalidKeyFormat
}
asn1Bytes, err := x509.MarshalPKIXPublicKey(s.Key.Public())
if err != nil {
return nil, err
}
if format == "pem" {
return pem.EncodeToMemory(&pem.Block{
Type: "PUBLIC KEY",
Bytes: asn1Bytes,
}), nil
}
return asn1Bytes, nil
}

81
internal/security/signer_test.go
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@ -1,81 +0,0 @@
package security
import (
"crypto/x509"
"encoding/pem"
"strings"
"testing"
"github.com/stretchr/testify/require"
)
type ConstantReader struct {
}
func (c *ConstantReader) Read(p []byte) (int, error) {
return 1, nil
}
func TestSigner_Sign(t *testing.T) {
randomReader = &ConstantReader{}
rawKey, _ := pem.Decode([]byte("-----BEGIN RSA PRIVATE KEY-----\nMIIBOwIBAAJBANbUpVCZkMKpfvYZ08W3lumdAaYxLBnmUDlzHBQH3DpYef5WCO32\nTDU6feIJ58A0lAywgtZ4wwi2dGHOz/1hAvcCAwEAAQJAItaxSHTe6PKbyEU/9pxj\nONdhYRYwVLLo56gnMYhkyoEqaaMsfov8hhoepkYZBMvZFB2bDOsQ2SaJ+E2eiBO4\nAQIhAPssS0+BR9w0bOdmjGqmdE9NrN5UJQcOW13s29+6QzUBAiEA2vWOepA5Apiu\npEA3pwoGdkVCrNSnnKjDQzDXBnpd3/cCIEFNd9sY4qUG4FWdXN6RnmXL7Sj0uZfH\nDMwzu8rEM5sBAiEAhvdoDNqLmbMdq3c+FsPSOeL1d21Zp/JK8kbPtFmHNf8CIQDV\n6FSZDwvWfuxaM7BsycQONkjDBTPNu+lqctJBGnBv3A==\n-----END RSA PRIVATE KEY-----\n"))
key, _ := x509.ParsePKCS1PrivateKey(rawKey.Bytes)
signer := NewSigner(key)
signature, err := signer.Sign(strings.NewReader("mock string to sign"))
require.NoError(t, err)
require.Equal(t, []byte{
0xd0, 0x88, 0xc6, 0x65, 0x27, 0x5d, 0xe4, 0x86, 0x6b, 0x7a, 0x5a, 0xd, 0x94, 0x6f, 0x80, 0x88, 0x12, 0x8e, 0x65,
0x75, 0xfb, 0xba, 0xcb, 0x7f, 0x90, 0xf5, 0xae, 0x5d, 0x2c, 0x5d, 0x60, 0xf6, 0x83, 0x54, 0xd3, 0x40, 0xd, 0x1f,
0xc0, 0xbc, 0x6d, 0xa8, 0x6f, 0x6, 0xd8, 0x38, 0x74, 0x5b, 0x4f, 0x15, 0x82, 0x6d, 0x67, 0x95, 0x7b, 0xf, 0xcc,
0xf3, 0x51, 0xfe, 0xcd, 0xb9, 0x1e, 0xdf,
}, signature)
}
func TestSigner_GetPublicKey(t *testing.T) {
randomReader = &ConstantReader{}
rawKey, _ := pem.Decode([]byte("-----BEGIN RSA PRIVATE KEY-----\nMIIBOwIBAAJBANbUpVCZkMKpfvYZ08W3lumdAaYxLBnmUDlzHBQH3DpYef5WCO32\nTDU6feIJ58A0lAywgtZ4wwi2dGHOz/1hAvcCAwEAAQJAItaxSHTe6PKbyEU/9pxj\nONdhYRYwVLLo56gnMYhkyoEqaaMsfov8hhoepkYZBMvZFB2bDOsQ2SaJ+E2eiBO4\nAQIhAPssS0+BR9w0bOdmjGqmdE9NrN5UJQcOW13s29+6QzUBAiEA2vWOepA5Apiu\npEA3pwoGdkVCrNSnnKjDQzDXBnpd3/cCIEFNd9sY4qUG4FWdXN6RnmXL7Sj0uZfH\nDMwzu8rEM5sBAiEAhvdoDNqLmbMdq3c+FsPSOeL1d21Zp/JK8kbPtFmHNf8CIQDV\n6FSZDwvWfuxaM7BsycQONkjDBTPNu+lqctJBGnBv3A==\n-----END RSA PRIVATE KEY-----\n"))
key, _ := x509.ParsePKCS1PrivateKey(rawKey.Bytes)
signer := NewSigner(key)
t.Run("pem format", func(t *testing.T) {
publicKey, err := signer.GetPublicKey("pem")
require.NoError(t, err)
require.Equal(t, []byte{
0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x42, 0x45, 0x47, 0x49, 0x4e, 0x20, 0x50, 0x55, 0x42, 0x4c, 0x49, 0x43, 0x20,
0x4b, 0x45, 0x59, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0xa, 0x4d, 0x46, 0x77, 0x77, 0x44, 0x51, 0x59, 0x4a, 0x4b,
0x6f, 0x5a, 0x49, 0x68, 0x76, 0x63, 0x4e, 0x41, 0x51, 0x45, 0x42, 0x42, 0x51, 0x41, 0x44, 0x53, 0x77, 0x41,
0x77, 0x53, 0x41, 0x4a, 0x42, 0x41, 0x4e, 0x62, 0x55, 0x70, 0x56, 0x43, 0x5a, 0x6b, 0x4d, 0x4b, 0x70, 0x66,
0x76, 0x59, 0x5a, 0x30, 0x38, 0x57, 0x33, 0x6c, 0x75, 0x6d, 0x64, 0x41, 0x61, 0x59, 0x78, 0x4c, 0x42, 0x6e,
0x6d, 0xa, 0x55, 0x44, 0x6c, 0x7a, 0x48, 0x42, 0x51, 0x48, 0x33, 0x44, 0x70, 0x59, 0x65, 0x66, 0x35, 0x57,
0x43, 0x4f, 0x33, 0x32, 0x54, 0x44, 0x55, 0x36, 0x66, 0x65, 0x49, 0x4a, 0x35, 0x38, 0x41, 0x30, 0x6c, 0x41,
0x79, 0x77, 0x67, 0x74, 0x5a, 0x34, 0x77, 0x77, 0x69, 0x32, 0x64, 0x47, 0x48, 0x4f, 0x7a, 0x2f, 0x31, 0x68,
0x41, 0x76, 0x63, 0x43, 0x41, 0x77, 0x45, 0x41, 0x41, 0x51, 0x3d, 0x3d, 0xa, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d,
0x45, 0x4e, 0x44, 0x20, 0x50, 0x55, 0x42, 0x4c, 0x49, 0x43, 0x20, 0x4b, 0x45, 0x59, 0x2d, 0x2d, 0x2d, 0x2d,
0x2d, 0xa,
}, publicKey)
})
t.Run("der format", func(t *testing.T) {
publicKey, err := signer.GetPublicKey("der")
require.NoError(t, err)
require.Equal(t, []byte{
0x30, 0x5c, 0x30, 0xd, 0x6, 0x9, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0xd, 0x1, 0x1, 0x1, 0x5, 0x0, 0x3, 0x4b, 0x0,
0x30, 0x48, 0x2, 0x41, 0x0, 0xd6, 0xd4, 0xa5, 0x50, 0x99, 0x90, 0xc2, 0xa9, 0x7e, 0xf6, 0x19, 0xd3, 0xc5,
0xb7, 0x96, 0xe9, 0x9d, 0x1, 0xa6, 0x31, 0x2c, 0x19, 0xe6, 0x50, 0x39, 0x73, 0x1c, 0x14, 0x7, 0xdc, 0x3a,
0x58, 0x79, 0xfe, 0x56, 0x8, 0xed, 0xf6, 0x4c, 0x35, 0x3a, 0x7d, 0xe2, 0x9, 0xe7, 0xc0, 0x34, 0x94, 0xc,
0xb0, 0x82, 0xd6, 0x78, 0xc3, 0x8, 0xb6, 0x74, 0x61, 0xce, 0xcf, 0xfd, 0x61, 0x2, 0xf7, 0x2, 0x3, 0x1, 0x0,
0x1,
}, publicKey)
})
t.Run("unknown format", func(t *testing.T) {
publicKey, err := signer.GetPublicKey("unknown")
require.Nil(t, publicKey)
require.ErrorContains(t, err, "invalid")
})
}